greenplumn CXformPushGbDedupBelowJoin 源码
greenplumn CXformPushGbDedupBelowJoin 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/xforms/CXformPushGbDedupBelowJoin.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2013 VMware, Inc. or its affiliates.
//
// @filename:
// CXformPushGbDedupBelowJoin.h
//
// @doc:
// Push dedup group by below join transform
//---------------------------------------------------------------------------
#ifndef GPOPT_CXformPushGbDedupBelowJoin_H
#define GPOPT_CXformPushGbDedupBelowJoin_H
#include "gpos/base.h"
#include "gpopt/xforms/CXformPushGbBelowJoin.h"
namespace gpopt
{
using namespace gpos;
//---------------------------------------------------------------------------
// @class:
// CXformPushGbDedupBelowJoin
//
// @doc:
// Push dedup group by below join transform
//
//---------------------------------------------------------------------------
class CXformPushGbDedupBelowJoin : public CXformPushGbBelowJoin
{
private:
public:
CXformPushGbDedupBelowJoin(const CXformPushGbDedupBelowJoin &) = delete;
// ctor
explicit CXformPushGbDedupBelowJoin(CMemoryPool *mp);
// dtor
~CXformPushGbDedupBelowJoin() override = default;
// ident accessors
EXformId
Exfid() const override
{
return ExfPushGbDedupBelowJoin;
}
const CHAR *
SzId() const override
{
return "CXformPushGbDedupBelowJoin";
}
}; // class CXformPushGbDedupBelowJoin
} // namespace gpopt
#endif // !GPOPT_CXformPushGbDedupBelowJoin_H
// EOF
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